Designed to extend the lower frequencies of the X8-15A v2 model down to 30Hz, the X8-SUB is a 750W peak-rated 18-inch ported subwoofer. Equipped with XLR line inputs and outputs, the new subwoofer also integrates a high pass filtered line out connection at 80Hz, which provides a link through the sub to the sop enclosure. Measuring 620mm H x 490mm W x 595mm D, the 44kg incorporates a Class-D amplifier with switching power supply, which includes a suite of protection circuits including turn on delay, short circuit, DC voltage, peak, limiter and over temperature.